how much was a new board ? just curious.Well decided to buy a new board - ouch ouch I can’t sit down - but with the new one here then maybe we could figure out what is wrong and help others
how much was a new board ? just curious.Well decided to buy a new board - ouch ouch I can’t sit down - but with the new one here then maybe we could figure out what is wrong and help others
£138 - and no lube before either - just with it being had at before hand - could be chasing anythinghow much was a new board ? just curious.
last board I bought was about 90 or 100 and post , but it was a bigger board with no spot timer etc.£138 - and no lube before either - just with it being had at before hand - could be chasing anything
Fingers crossed with some help we can see what’s happening with the broken pcblast board I bought was about 90 or 100 and post , but it was a bigger board with no spot timer etc.
to be fair a lot of places would ant that for looking at a welder , let alone fixing it .
£138 - and no lube before either - just with it being had at before hand - could be chasing anything
Spot function ain’t for me either - it’s just a welder ive picked up buddy .I think for that price I'd forget about using the spot weld function & just learn to hold in the trigger & count!
Sealey may not be EWM or Fronius , but its their spares back up that gets them a lot of kudos.
A working Sealey is still better than a broken EWM.
Hi Eddie , they was no function when trigger was pressed nothing - it only did something when the spot timer was on it would just run and run - all caps tested good - pulled them all out - every diode tested ok - they is a tiny transistor q3 under the pot - will get back with chip numberI thought that the welder works correctly in normal mode - when the trigger is pressed the wirefeed, gas and arc start up. The only fault is that when switched into Spot Timer mode, these three functions ( wirefeed, gas, arc ) start immediately, before activation of the torch trigger. Is this description of the fault correct?
If correct, then I guess there is an electronic latch ( flip-flop ) incorrectly getting set as soon as spot timer mode is switched on.
I have not found a diagram for the board, and tracing tracks on a surface-mount board is harder than for through-hole. It will also be harder to replace components. I don't have the hot-air rework gear that is needed for this job.
I think the wires at the 6-pin connector are as follows: 1 : Motor +ve. 2 : Motor -ve. 3 : Main rectifier -ve. 4 : Rectifier +ve. 5 : Trigger switch. 6 : Trigger switch.
You could start by metering across the diodes, capacitors, and resistors for basic go/no-go tests.
What is the part number of the 14-pin SMD chip U1? I think there is a transistor Q3 near the timer pot?
when you have a customer breathing down your neck Id beg to differ .No it isn’t